January 1960, Yves Montand and Simone Signoret are one of the most famous artist couple at the time, is on tour in the U.S.
Marylin Monroe and Arthur Miller formed the most glamourous duet of all Hollywood.
The two couples meet and soon become friends.
The two couples become inseparable but everything changes when Signoret and Miller have to leave Los Angeles for professional reasons.
What happens then, Monroe and Montand forget their loneliness in each other arms.
They are photographed arm in arm in Hollywood. The press makes it the first ever people scandal of History.
Simone Signoret learns about her husband affair in the newspapers.
But Signoret doesn’t want to divorce and Montand will find meet her back in their French home.
She eventually forgives her husband and her friend, and even jokes about being the most famous cheated on in the world.
The French couple stayed married until Signoret death’s in 1985.
Monroe and Miller divorce a few months after the affair in January 1961.